Britain's North Sea oil and gas sector has shed some 5,500 jobs since late 2014 over a year-long decline in oil prices.
The UK's new Oil and Gas Authority (OGA) said Monday that the figure on job losses resulted from falling energy prices.
"Regrettably, this has led to the loss of around 5,500 jobs since late 2014," Andy Samuel, chief executive of the OGA, said in a report.
North Sea oil companies have been particularly hard hit by the near 55 percent decline in Brent crude prices since June 2014, as they were already facing some of the industry's highest operating costs in one of the world's most mature basins, Reuters reported.
Operators in the sector, including Shell, BP, Chevron and ConocoPhillips, have all announced staff cuts, a trend that has raised concerns about an emerging skills gap. The OGA, established as an executive body five months ago, is tasked with helping North Sea operators squeeze as much oil and gas out of the basin as possible.
The oil and gas sector employs around 375,000 people and remains an important source of tax revenue, despite those receipts dropping.
UK oil production has fallen to the lowest since output started in the mid-1970s as old fields run out of resources.
Two operators recently announced their intention to shut fields early, making the OGA's mission more pressing than ever.